UBUNTU-CVE-2026-53910

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Source

https://ubuntu.com/security/CVE-2026-53910

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-53910.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-53910

Upstream

CVE-2026-53910

Published

2026-07-22T14:17:00Z

Modified

2026-07-29T10:18:18.935949377Z

Severity

2.1 (Low) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:L/SC:L/SI:L/SA:L CVSS Calculator
Ubuntu - medium

Summary

[none]

Details

diff3 tool from GNU diffutils is vulnerable to a heap‑based buffer overflow due to multiple signed integer overflows in line‑mapping calculations. Incorrect arithmetic in mapping line ranges can result in corrupted values being used for memory allocation and loop bounds. When processing crafted diff output, these overflows may cause the application to allocate insufficient memory and subsequently perform out‑of‑bounds writes during internal processing. An attacker who can control the output of the diff program used by diff3 (e.g. via --diff-program pointing to a malicious script) can trigger out-of-bounds writes, resulting in a crash and potentially remote code execution depending on the environment. This issue has been fixed in commit 9ff04d5b84743e331e80b589335a52c5480d1815 NOTE: The project maintainers claim that this is not a security issue. They state that the worst outcome this issue can cause is a crash of diff and that it cannot be used to escalate privileges.

References

Affected packages

Ubuntu:14.04:LTS

diffutils

Package

Name: diffutils
Purl: pkg:deb/ubuntu/diffutils?arch=source&distro=trusty

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1:3.*

1:3.2-8

1:3.3-1

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "1:3.3-1",
            "binary_name": "diffutils"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-53910.json"

Ubuntu:16.04:LTS

diffutils

Package

Name: diffutils
Purl: pkg:deb/ubuntu/diffutils?arch=source&distro=xenial

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1:3.*

1:3.3-1

1:3.3-2

1:3.3-3

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "1:3.3-3",
            "binary_name": "diffutils"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-53910.json"

Ubuntu:18.04:LTS

diffutils

Package

Name: diffutils
Purl: pkg:deb/ubuntu/diffutils?arch=source&distro=bionic

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1:3.*

1:3.6-1

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "1:3.6-1",
            "binary_name": "diffutils"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-53910.json"

Ubuntu:20.04:LTS

diffutils

Package

Name: diffutils
Purl: pkg:deb/ubuntu/diffutils?arch=source&distro=focal

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1:3.*

1:3.7-3

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "1:3.7-3",
            "binary_name": "diffutils"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-53910.json"

Ubuntu:22.04:LTS

diffutils

Package

Name: diffutils
Purl: pkg:deb/ubuntu/diffutils?arch=source&distro=jammy

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1:3.*

1:3.8-0ubuntu1

1:3.8-0ubuntu2

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "1:3.8-0ubuntu2",
            "binary_name": "diffutils"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-53910.json"

Ubuntu:24.04:LTS

diffutils

Package

Name: diffutils
Purl: pkg:deb/ubuntu/diffutils?arch=source&distro=noble

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1:3.*

1:3.8-4

1:3.10-1

1:3.10-1build1

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "1:3.10-1build1",
            "binary_name": "diffutils"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-53910.json"

Ubuntu:26.04:LTS

diffutils

Package

Name: diffutils
Purl: pkg:deb/ubuntu/diffutils?arch=source&distro=resolute

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1:3.*

1:3.10-4

1:3.12-1

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "1:3.12-1",
            "binary_name": "diffutils"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-53910.json"